Jason Stallcup, 42, was sentenced to 27 years and 3 months for robbing the Romance Diamond Company on Dickson Street in 2008, according to a news release from U.S. Attorney Conner Eldridge.

Stallcup, of Michigan, posed as a Christmas shopper and held up the store with a .22-caliber gun, according to the news release. Stallcup made employees fill his shopping bag with about $300,000 worth of Diamonds, bracelets, earrings and watches, before using zip ties to subdue two employees and a customer.

Stallcup pleaded guilty Oct. 7 to robbery and use of a firearm during a crime of violence.

"The violent manner in which this defendant terrorized these three innocent victims is totally unconscionable," Eldridge said in the news release. "Thanks to the dedicated work of local law enforcement and Michigan authorities, this offender was apprehended and brought back to be held accountable for this outrageous crime."